Media Information

 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Active Regions, CMEs, and X-Class Flares
Explanation:
Space Weather forcasters [ http://sec.noaa.gov…] are predicting major storm conditions over the next few days as the active Sun [ http://www.dxlc.com…] has produced [ http://pao.gsfc.nas…] at least three strong flares and a large coronal mass ejection (CME) since Tuesday, June 6th [ http://sohowww.nasc…]. This recent [ http://umbra.nascom…] false color X-ray image [ http://www.lmsal.co…] of the Sun shows the active region generating the explosive events, here the Sun's [ http://antwrp.gsfc.…] most intense source of X-rays [ http://imagine.gsfc…history_xray.html ], as the dominant bright area just above center. X-ray hot plasma suspended in looping magnetic fields arcs above this region, cataloged as AR9026. AR9026 appears as a large group of sunspots [ http://es.rice.edu/…sunspots.html ] in visible light images. The three intense flares were all X-class events, the most severe class of solar flares based on X-ray flux measurements [ http://sec.noaa.gov…] by the earth-orbiting GOES [ http://www.earth.na…] satellites. Energetic particles from the CME [ http://antwrp.gsfc.…], associated with the second X-class flare, were directed toward [ http://www.spacewea…] planet Earth and could produce geomagnetic storms [ http://sec.noaa.gov…] as early as today. Possible effects range from increased auroral displays [ http://sec.noaa.gov…] to disruptions of satellite and communications systems and electrical power grids. But wait ... there's more! In the coming days AR9026, carried slowly across the Sun (from left to right) by solar rotation [ http://antwrp.gsfc.…], is likely to produce even more solar flares [ http://hesperia.gsf…].
Credit and Copyright:
ISAS [ http://www.isas.ac.…], Yohkoh Project [ http://www.solar.is…], SXT Group [ http://www.lmsal.co…]
keyword:
sun
keyword:
solar flare
keyword:
active region
keyword:
space weather
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Washington, D.C.
facet_what:
Earth
facet_what:
Galileo
facet_what:
Sun
facet_what:
SOHO
facet_what:
Visible Light
facet_what:
Yohkoh
original url:
UID:
SPD-APOD-ap000608

Active Regions, CMEs, and X-Class Flares